Plastic film cutting device

Abstract

The utility model relates to the technical field of plastic film cutting, and particularly discloses a plastic film cutting device. The device comprises a device body, the device body comprises a bottom plate, and a mounting base arranged in the width direction of the bottom plate is arranged at the bottom plate; the mounting base divides the bottom plate into a mounting section and a cutting section; a winding roller for winding the plastic film is arranged in the mounting interval; a first through hole for a plastic film on the winding roller to pass through is formed in the mounting seat; a cutting assembly is arranged in the cutting interval and used for cutting the plastic film entering the cutting interval. According to the device, the cutting efficiency of workers can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic film cutting, in particular to a plastic film cutting device. Background Art

[0002] Film is a thin, soft, transparent film made of plastic, adhesive, rubber or other materials. After production, the film is in the form of long strips and is wound up using a winding roller. When the film is used, it often needs to be cut into the required length. Traditional film cutting is to pull the film out of the winding roller to the required length and then cut it with a cutting knife. Generally, the cutting knife can only cut the film longitudinally and diagonally. When cutting different sizes and irregular shapes, the operator needs to first use tools such as a ruler to measure and mark, and then use a cutting knife to cut the marked parts. The operation is relatively cumbersome and affects the cutting efficiency. Utility Model Content

[0003] The utility model provides a plastic film cutting device, which can overcome certain defects of the prior art.

[0004] According to the utility model, a plastic film cutting device includes a device body, which includes a base plate, and a mounting seat arranged along the width direction of the base plate is provided on the base plate; the mounting seat divides the base plate into a mounting area and a cutting area; a winding roller for winding up the plastic film is provided in the mounting area; a first through hole for the plastic film on the winding roller to pass through is provided on the mounting seat; a cutting assembly is provided in the cutting area, and the cutting assembly is used to cut the plastic film entering the cutting area.

[0005] According to the utility model, when cutting a plastic film, a worker first places a wound winding roller on a support plate, then pulls the plastic film on the winding roller so that the plastic film passes through the auxiliary roller and passes between the first guide roller and the second guide roller and extends into the cutting area. Then, the worker rotates the position of the first mounting rod and the pressure plate to align the measuring plate on the pressure plate with the position where the plastic film needs to be cut. Then, the worker presses the telescopic column to move the telescopic column downward. The downward movement of the telescopic column causes the blade below the telescopic column to rest against the plastic film. Then, the telescopic column is pushed to cause the sliding block to slide along the third through hole, thereby cutting the plastic film. The worker can adjust the length of the first mounting rod extending into the cutting area and the inclination angle of the pressure plate within the cutting area according to the shape of the required plastic film, so that the worker can cut plastic films of different shapes by adjusting the position of the pressure plate and the first mounting rod. Compared with the prior art, the device does not require pre-cutting marks, and can directly cut the plastic film by cooperating with the scale lines on the pressure plate and the measuring plate. The operation steps are simple, which improves the cutting efficiency of the worker.

[0006] Preferably, the cutting assembly includes a first mounting rod arranged along the length direction of the cutting section; a first mounting block and a second mounting block are respectively provided at both ends of the first mounting rod and are rotatably connected to the first mounting rod; the first mounting rod is provided with a second through hole arranged along the length direction of the first mounting rod and for the first mounting block to slide;

[0007] The mounting seat is provided with a first slide groove which is arranged along the length direction of the mounting seat and is slidably connected to the first mounting block; a pressure plate which is arranged along the width direction of the cutting interval is provided in the cutting interval, and the pressure plate is provided with a second slide groove which is arranged along the length direction of the pressure plate and is slidably connected to the second mounting block; one end of the pressure plate away from the first mounting rod extends outward to form a measuring plate, and the end of the measuring plate away from the pressure plate is provided with a scale line; a third through hole which is arranged along the length direction of the measuring plate is provided on the measuring plate; the measuring plate is also provided with a cutter mechanism which slidably cooperates with the third through hole, and the cutter mechanism is used to cut the plastic film.

[0008] With the utility model, the staff can push the first mounting block to make the first mounting block slide along the first slide groove, so that the first mounting rod can move along the width direction of the cutting interval, and the second mounting block can slide along the second slide groove, so that the staff can adjust the length of the pressure plate within the cutting interval conveniently, so that the pressure plate can move with the cutting mechanism within the entire cutting interval, thereby expanding the moving range of the pressure plate, and enabling the cutting mechanism to cut out more plastic films of different sizes.

[0009] Preferably, the first mounting block includes a first connecting column passing through the second through hole; a first circular plate is provided at one end of the first connecting column, and a first slider extending into the first slide groove is provided at the other end; the second mounting block includes a second connecting column passing through the first mounting rod; a second circular plate is provided at one end of the second connecting column, and a second slider extending into the second slide groove is provided at the other end; a fourth through hole is provided at the first mounting rod for the second connecting column to pass through; a first spring is provided between the second slider and the first mounting rod and is sleeved on the second connecting column.

[0010] According to the present invention, the cross sections of the first slider, the second slider, the first chute and the second chute are T-shaped, thereby preventing the first slider and the second slider from being separated from the first chute and the second chute when the first slider and the second slider slide;

[0011] The first spring pushes the second slider, causing the second slider to press the pressing plate downward, causing the pressing plate to press on the plastic film, thereby pressing the plastic film tightly to prevent the plastic film from deflecting during shearing;

[0012] After the plastic film enters the cutting area, the staff can push the pressing plate to make it slide across the plastic film, thereby flattening the plastic film and facilitating subsequent cutting.

[0013] Preferably, the cutting mechanism includes a sliding block passing through the third through hole, and a mounting cavity is provided inside the sliding block; a telescopic column is provided in the mounting cavity, with both ends passing through the sliding block and extending out of the mounting cavity; the telescopic column is located at the side wall of the mounting cavity and extends outward along the circumferential direction to form a flange; a second spring is provided in the mounting cavity, and the second spring is used to push the flange to maintain the upward movement trend of the telescopic column; a blade extending toward the bottom plate is provided at the lower end of the telescopic column; two first clamping plates and a second clamping plates extending toward the scale line are provided on the side wall of the sliding block; the first clamping plate, the second clamping plate and the sliding block together constitute a clamping interval for clamping the measuring plate.

[0014] When the worker cuts the plastic film, the worker first presses the telescopic column to move it downward. The downward movement of the telescopic column pushes the flange downward to squeeze the second spring. At the same time, the blade also moves downward to extend toward the plastic film. Then the worker pulls the telescopic column to make the sliding block slide along the third through hole, so that the blade passes through the surface of the plastic film and cuts the plastic film. When the worker releases his hand pressing the telescopic column, the second spring pushes the flange upward. At this time, the telescopic column moves upward, thereby driving the blade upward and leaving the plastic film, thereby preventing the blade from scratching the plastic film when the worker moves the pressure plate.

[0015] Preferably, a third circular plate is provided at the upper end of the telescopic column.

[0016] Through the utility model, the third circular plate increases the contact area between the telescopic column and the worker's fingers, thereby making it easier for the worker to press the telescopic column.

[0017] Preferably, a first guide roller is provided in the first through hole along the length direction of the first through hole; a groove is provided at the bottom of the mounting seat along the width direction of the base plate, and a second guide roller is provided in the groove parallel to the first guide roller.

[0018] According to the utility model, the plastic film needs to pass between the first guide roller and the second guide roller before entering the cutting zone. The first guide roller and the second guide roller can flatten the plastic film during the passage of the plastic film to prevent the plastic film from wrinkling.

[0019] Preferably, two support plates are provided at the bottom plate, a winding roller is provided at the top of the support plate, and an auxiliary roller is provided at the bottom of the support plate.

[0020] With the utility model, the plastic film passes through the auxiliary roller and then passes between the first guide roller and the second guide roller. When the auxiliary roller is used, the plastic film can pass smoothly between the first guide roller and the second guide roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the device body in Example 1.

[0022] Figure 2 Schematic diagram of the mounting base in Example 1.

[0023] Figure 3 is a schematic view of the cutting assembly in Example 1.

[0024] Figure 4 is an exploded view of the cutting assembly in Example 1.

[0025] Figure 5 is a schematic view of the pressure plate in Example 1.

[0026] Figure 6 is a schematic view of the cutter mechanism in Example 1.

[0027] Figure 7 is a sectional view of the cutter mechanism in Example 1. DETAILED DESCRIPTION

[0028] For further understanding of the present application, the application will be described in detail with reference to the embodiments. It should be understood that the embodiments are only used to explain the present application and not to limit the present application. EMBODIMENT

[0029] As shown in Figure 1-7 The present embodiment provides a plastic film cutting device, which comprises a device main body 100, the device main body 100 comprises a bottom plate 140, the bottom plate 140 is provided with a mounting seat 150 arranged along the width direction of the bottom plate 140; the mounting seat 150 divides the bottom plate 140 into an installation interval 260 and a cutting interval 230; a winding roller 120 for winding the plastic film is arranged in the installation interval 260; the mounting seat 150 is provided with a first through hole 170 through which the plastic film on the winding roller 120 passes; a cutting assembly 160 is arranged in the cutting interval 230, and the cutting assembly 160 is used for cutting the plastic film entering the cutting interval 230.

[0030] Through the embodiment, when the worker cuts the plastic film, first, the worker puts the winding roller 120 on the support plate 130, then pulls the plastic film on the winding roller 120, so that the plastic film passes through the auxiliary roller 110 and the first guide roller 250 and the second guide roller 240 between the first guide roller 250 and the second guide roller 240 into the cutting interval 230, then the worker adjusts the position of the first mounting rod 310 and the pressing plate 390, so that the measuring plate 370 on the pressing plate 390 is aligned with the position where the plastic film needs to be cut, then the worker presses the telescopic column 620, so that the telescopic column 620 moves downward, and the blade 640 below the telescopic column 620 abuts against the plastic film, then the worker pushes the telescopic column 620, so that the sliding block 630 slides along the third through hole 350, thereby cutting the plastic film; the worker can adjust the length of the first mounting rod 310 extending to the cutting interval 230 and the inclination angle of the pressing plate 390 in the cutting interval 230 according to the shape of the plastic film needed, thereby cutting the plastic film, so that the worker can cut plastic films of different shapes by adjusting the positions of the pressing plate 390 and the first mounting rod 310; compared with the prior art, the device does not need to make cutting marks in advance, can cut the plastic film directly by cooperation of the pressing plate 390 and the scale line 360 on the measuring plate 370, the operation steps are simple, and the cutting efficiency of the worker is improved.

[0031] In the embodiment, the cutting assembly 160 comprises a first mounting rod 310 arranged along the length direction of the cutting interval 230; the first mounting rod 310 is provided with a first mounting block 320 and a second mounting block 301 rotatably connected to the first mounting rod 310 at two ends of the first mounting rod 310 respectively; the first mounting rod 310 is provided with a second through hole 330 arranged along the length direction of the first mounting rod 310 and allowing the first mounting block 320 to slide;

[0032] The mounting seat 150 is provided with a first sliding groove 210 arranged along the length direction of the mounting seat 150 and slidably connected to the first mounting block 320; the cutting interval 230 is provided with a pressing plate 390 arranged along the width direction of the cutting interval 230, the pressing plate 390 is provided with a second sliding groove 340 arranged along the length direction of the pressing plate 390 and slidably connected to the second mounting block 301; an end of the pressing plate 390 away from the first mounting rod 310 extends outward to form a measuring plate 370, and an end of the measuring plate 370 away from the pressing plate 390 is provided with a scale line 360; the measuring plate 370 is provided with a third through hole 350 arranged along the length direction of the measuring plate 370; the measuring plate 370 is further provided with a cutter mechanism 380 slidably matched with the third through hole 350, and the cutter mechanism 380 is used for cutting the plastic film.

[0033] Through this embodiment, the staff can push the first mounting block 320 to make the first mounting block 320 slide along the first slide groove 210, so that the first mounting rod 310 can move along the width direction of the cutting interval 230, and the second mounting block 301 can slide along the second slide groove 340, so that the staff can adjust the length of the pressure plate 390 in the cutting interval 230 conveniently, so that the pressure plate 390 can move with the cutting mechanism 380 in the entire cutting interval 230, thereby expanding the moving range of the pressure plate 390, so that the cutting mechanism 380 can cut out more plastic films of different sizes.

[0034] In this embodiment, the first mounting block 320 includes a first connecting column 420 passing through the second through hole 330; a first circular plate 410 is provided at one end of the first connecting column 420, and a first slider 430 extending into the first slide groove 210 is provided at the other end; the second mounting block 301 includes a second connecting column 460 passing through the first mounting rod 310; a second circular plate 450 is provided at one end of the second connecting column 460, and a second slider 480 extending into the second slide groove 340 is provided at the other end; a fourth through hole 440 is provided at the first mounting rod 310 for the second connecting column 460 to pass through; a first spring 470 is provided between the second slider 480 and the first mounting rod 310 and is sleeved on the second connecting column 460.

[0035] According to this embodiment, the first slider 430, the second slider 480, the first slide groove 210, and the second slide groove 340 have a T-shaped cross section, thereby preventing the first slider 430, the second slider 480 from being separated from the first slide groove 210, the second slide groove 340 when the first slider 430, the second slider 480 slides;

[0036] The first spring 470 pushes the second slider 480 so that the second slider 480 presses the pressing plate 390 downward, so that the pressing plate 390 presses on the plastic film, thereby pressing the plastic film tightly to prevent the plastic film from deflecting during shearing.

[0037] After the plastic film enters the cutting zone 230 , the staff can push the pressing plate 390 to make the pressing plate 390 pass over the plastic film, thereby making the plastic film flat and convenient for subsequent cutting.

[0038] In this embodiment, the cutter mechanism 380 includes a sliding block 630 passing through the third through hole 350, and a mounting cavity 730 is provided inside the sliding block 630; a telescopic column 620 is provided in the mounting cavity 730, with both ends passing through the sliding block 630 and extending out of the mounting cavity 730; the telescopic column 620 is located at the side wall of the mounting cavity 730 and extends outward along the circumferential direction to form a flange 720; a second spring 750 is provided in the mounting cavity 730, and the second spring 750 is used to push the flange 720 to maintain the upward movement of the telescopic column 620; a blade 640 is provided at the lower end of the telescopic column 620 extending toward the base plate 140; two first clamping plates 660 and a second clamping plate 650 extending toward the scale line 360 ​​are provided on the side wall of the sliding block 630; the first clamping plate 660, the second clamping plate 650 and the sliding block 630 together constitute a clamping section 670 for clamping the measuring plate 370.

[0039] With this embodiment, when the staff cuts the plastic film, they first press the telescopic column 620 to move the telescopic column 620 downward. The downward movement of the telescopic column 620 pushes the flange 720 downward to squeeze the second spring 750. At the same time, the blade 640 also moves downward to extend toward the plastic film. Then the staff pulls the telescopic column 620 to make the sliding block 630 slide along the third through hole 350, so that the blade 640 slides across the surface of the plastic film to cut the plastic film; when the staff releases the hand pressing the telescopic column 620, the second spring 750 pushes the flange 720 upward. At this time, the telescopic column 620 moves upward, thereby driving the blade 640 to move upward and leave the plastic film, thereby preventing the blade 640 from scratching the plastic film when the staff moves the pressure plate 390.

[0040] In this embodiment, a third circular plate 610 is provided at the upper end of the telescopic column 620 .

[0041] Through this embodiment, the third circular plate 610 increases the contact area between the telescopic column 620 and the worker's fingers, thereby making it easier for the worker to press the telescopic column 620 .

[0042] In this embodiment, a first guide roller 250 is provided in the first through hole 170 and is arranged along the length direction of the first through hole 170; a groove 220 is provided at the bottom of the mounting seat 150 and is arranged along the width direction of the base plate 140, and a second guide roller 240 is provided in the groove 220 and is arranged parallel to the first guide roller 250.

[0043] According to this embodiment, the plastic film needs to pass between the first guide roller 250 and the second guide roller 240 before entering the cutting section 230. The first guide roller 250 and the second guide roller 240 can straighten the plastic film during the passage of the plastic film to prevent the plastic film from wrinkling.

[0044] In this embodiment, two support plates 130 are provided on the bottom plate 140 , the winding roller 120 is provided on the top of the support plate 130 , and the auxiliary roller 110 is provided on the bottom of the support plate 130 .

[0045] According to this embodiment, the plastic film passes through the auxiliary roller 110 and then passes between the first guide roller 250 and the second guide roller 240 . When the auxiliary roller 110 is used, the plastic film can pass smoothly between the first guide roller 250 and the second guide roller 240 .

[0046] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application based on one or several embodiments provided in the present application to obtain other embodiments, and these embodiments do not exceed the scope of protection of the present application.

[0047] The above is a schematic description of the present invention and its embodiments, which is not restrictive. The embodiments shown are only part of the embodiments of the present invention, and the actual structure is not limited to them. Therefore, if a person skilled in the art is inspired by the above and designs a structure and embodiment similar to the technical solution without creatively designing it without departing from the inventive purpose of the present invention, it shall fall within the scope of protection of the present invention.

Claims

1. A plastic film cutting device, characterized in that: The device comprises a main body (100), the main body (100) comprising a bottom plate (140), a mounting seat (150) arranged along the width direction of the bottom plate (140) being provided on the bottom plate (140); the mounting seat (150) divides the bottom plate (140) into a mounting area (260) and a cutting area (230); a winding roller (120) for winding up a plastic film is provided in the mounting area (260); a first through hole (170) for the plastic film on the winding roller (120) to pass through is provided on the mounting seat (150); a cutting assembly (160) is provided in the cutting area (230), and the cutting assembly (160) is used to cut the plastic film entering the cutting area (230); The cutting assembly (160) includes a first mounting rod (310) arranged along the length direction of the cutting section (230); a first mounting block (320) and a second mounting block (301) are respectively provided at both ends of the first mounting rod (310) and are rotatably connected to the first mounting rod (310); and a second through hole (330) is provided on the first mounting rod (310) and is arranged along the length direction of the first mounting rod (310) and is provided for the first mounting block (320) to slide. The mounting seat (150) is provided with a first slide groove (210) arranged along the length direction of the mounting seat (150) and slidably connected to the first mounting block (320); a pressing plate (390) is provided in the cutting section (230) along the width direction of the cutting section (230); the pressing plate (390) is provided with a second slide groove (340) arranged along the length direction of the pressing plate (390) and slidably connected to the second mounting block (301); an end of the pressing plate (390) away from the first mounting rod (310) extends outward to form a measuring plate (370), and an end of the measuring plate (370) away from the pressing plate (390) is provided with a scale line (360); a third through hole (350) is provided along the length direction of the measuring plate (370); a cutter mechanism (380) slidably matched with the third through hole (350) is further provided on the measuring plate (370), and the cutter mechanism (380) is used to cut the plastic film.

2. A plastic film cutting device according to claim 1, characterized in that: The first mounting block (320) includes a first connecting column (420) passing through the second through hole (330); a first circular plate (410) is provided at one end of the first connecting column (420), and a first slider (430) is provided at the other end thereof and extends into the first slide groove (210); the second mounting block (301) includes a second connecting column (460) passing through the first mounting rod (310); a second circular plate (450) is provided at one end of the second connecting column (460), and a second slider (480) is provided at the other end thereof and extends into the second slide groove (340); a fourth through hole (440) is provided at the first mounting rod (310) for the second connecting column (460) to pass through; a first spring (470) is provided between the second slider (480) and the first mounting rod (310) and is sleeved on the second connecting column (460).

3. A plastic film cutting device according to claim 2, characterized in that: The cutter mechanism (380) includes a sliding block (630) passing through the third through hole (350), and a mounting cavity (730) is provided inside the sliding block (630); a telescopic column (620) is provided in the mounting cavity (730), and both ends pass through the sliding block (630) and extend out of the mounting cavity (730); the telescopic column (620) is located at the side wall of the mounting cavity (730) and extends outward along the circumferential direction to form a flange (720); a second spring (750) is provided in the mounting cavity (730), and the second spring (7 50) is used to push the flange (720) to maintain the upward movement trend of the telescopic column (620); the lower end of the telescopic column (620) is provided with a blade (640) extending toward the bottom plate (140); the side wall of the sliding block (630) is provided with a first clamping plate (660) and a second clamping plate (650) extending toward the scale line (360); the first clamping plate (660), the second clamping plate (650) and the sliding block (630) together constitute a clamping section (670) for clamping the measuring plate (370).

4. A plastic film cutting device according to claim 3, characterized in that: A third circular plate (610) is provided at the upper end of the telescopic column (620).

5. The plastic film cutting device according to claim 1, characterized in that: A first guide roller (250) is provided in the first through hole (170) and is arranged along the length direction of the first through hole (170); a groove (220) is provided at the bottom of the mounting seat (150) and is arranged along the width direction of the bottom plate (140); a second guide roller (240) is provided in the groove (220) and is arranged parallel to the first guide roller (250).

6. The plastic film cutting device according to claim 1, characterized in that: Two support plates (130) are provided at the bottom plate (140), a winding roller (120) is arranged on the top of the support plate (130), and an auxiliary roller (110) is provided at the bottom of the support plate (130).

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